Chair Tube Bending Machine
News 2026-09-01
Metal chair frames occupy a large proportion in modern furniture production. Office chairs, mesh chairs, outdoor leisure chairs and dining chairs widely adopt steel and aluminum tubes as load‑bearing structures. Chair tube parts often contain multiple bends on one single pipe, including S‑shape and complex 3D forms. Most chair tubes are thin‑walled, which are prone to cross‑section flattening and inner wrinkling during bending. Dimensional errors will cause assembly mismatch and high scrap rate in subsequent welding processes. Conventional bending equipment heavily relies on skilled operators. Poor consistency of finished parts makes it difficult to meet strict interchangeability requirements from foreign furniture orders, limiting manufacturers’ delivery capacity.
The Chair Tube Bending Machine is specially customized for furniture tube processing. Equipped with servo CNC control system, it realizes multi‑axis synchronous motion of feeding, rotation and bending. Drawings can be imported for programming. Bending angle, radius and feeding length for chair legs, armrests and backrest frames can be saved as digital programs. Operators can recall programs directly when switching chair models, greatly shortening change‑over time, which perfectly fits furniture production mode of mixed high‑volume batches. Built‑in furniture‑oriented process library automatically adjusts bending speed, clamping force and springback compensation for Q235 welded steel tubes, thin‑wall stainless steel and aluminum alloy. It effectively avoids tube collapse and wrinkling, keeps uniform smooth curves, guarantees high dimensional consistency and interchangeability of mass‑produced chair components.
With this machine, many chair frames can be formed from one complete tube, cutting off cutting and welding joints. It not only saves welding labor cost, but also enhances overall structural strength of chairs. Fewer weld seams bring cleaner and premium surface after powder coating or electroplating, matching current minimalist metal furniture design trends. Quick‑change furniture‑oriented dies support various tube sizes. Mandrel and anti‑wrinkle tooling further improve forming quality for thin‑wall tubes. Heavy‑duty stress‑relieved machine frame ensures stable long‑hour continuous production and maintains accuracy, reducing material waste.
In practical applications, Chair Tube Bending Machine is widely applied to metal frames of office chairs, leisure chairs, patio chairs, dining chairs and gaming chairs. It handles both large‑volume standard export orders and new product sampling & small‑batch customization flexibly. Compared with traditional workflows, automatic bending reduces dependence on experienced workers, cuts labor cost, raises throughput and improves product qualification rate. Under fierce competition of global furniture supply chain, dedicated automatic tube bending equipment has become essential hardware for furniture hardware factories to strengthen competitiveness and win high‑quality overseas orders。
